Runge kutta 4 with matrix

Hello!

I have tried to search but can't find any good answers for my questions.

I have a matrix 2xN with x-values on the first row and y-values on the second row. N depends on how many steps I want to make using my program.

Now I want to use runge kutta 4 to on this matrix to calculate the answer. I've used the formula on paper and so on but can't figure out how to use it in matlab with a matrix. And no, I don't want to use ode45, only as a reference.

Thanks!

[James Tursa]

You haven't said what x and y are, or what your differential equations are. So we can't advise you on how to set up the MATLAB code. Also, are you coding up an RK4 manually for some reason rather than using ode45?